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Architecture & Design

Mini-talks: The Machine Intelligence Landscape: A Venture Capital Perspective by David Beyer. The future of global, trustless transactions on the largest graph: blockchain by Olaf Carlson-Wee. Algorithms for Anti-Money Laundering by Richard Minerich.

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Process & Practices

In-App Subscriptions Made Easy

There are various types of subscriptions: recurring, non-recurring, free-trial periods, various billing cycles and any possible billing variation one can imagine. But with lack of information online, you might discover that mobile subscriptions behave differently from what you expected. This article will make your life somewhat easier when addressing an in-app subscriptions implementation.

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Operations & Infrastructure

Mini-talks: The Machine Intelligence Landscape: A Venture Capital Perspective by David Beyer. The future of global, trustless transactions on the largest graph: blockchain by Olaf Carlson-Wee. Algorithms for Anti-Money Laundering by Richard Minerich.

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Enterprise Architecture

Mini-talks: The Machine Intelligence Landscape: A Venture Capital Perspective by David Beyer. The future of global, trustless transactions on the largest graph: blockchain by Olaf Carlson-Wee. Algorithms for Anti-Money Laundering by Richard Minerich.

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Erlang Co-creators, Joe Armstrong and Robert Virding, admit that Erlang is heavily inspired by the Java world. In an interview at ErlangFactory 2011 SF, they reveal how Scala Actors had shaped their work in what they then called Erlang Processes. Moreover, they acknowledge the fact that Erlang's VM is barely a clone of the famous JVM.

While Mono usually strives to follow the C# and Common Language Infrastructure specifications, it does occasionally go beyond them. While some features such as SIMD support are backwards-compatible with .NET, runtime supported continuations are exclusive to Mono.

Mono had a dirty little secret. Until recently it used the portable but woefully inaccurate Boehm-Demers-Weiser conservative garbage collector. After two long years of work Mono is making the shift to a new generational garbage collector that is specific to the CLR and far more precise than anything they’ve had before.

The first RC for JRuby 1.6 is out and brings improved Ruby 1.9.2 compatibility, experimental C extensions support, improved Windows support, Ruby Gems Maven support, performance and profiling improvements and more. InfoQ talked to JRuby's Charles Nutter about JRuby 1.6, the impact of Java 7 on JRuby, new language features in Ruby and much more.

The rather extensive runtime library used by Visual Basic and its compiler has been a major stumbling block for the language. Both the Windows Phone 7 and the XBox 360 don’t support the library, making clumsy workarounds necessary. With Visual Basic 10 SP 1, Microsoft once again tries to get it right.

The new Async CPT for VB and C# looks like it may actually make it into the core language. But with all the emphasis on multi-core systems, why is Microsoft investing so heavily in syntax for designed specifically for making single-threaded asynchronous programming easier?

Last month Vladimir Kelman asked if it were possible to use F# with the new Razor view engine. After talking with Scott Guthrie and Marcin Dobosz we learned that it is possible, if you want to put in the effort to build all necessary plugins yourself.

MonoDevelop has become the third IDE to support Microsoft’s F# language. With .NET support essentially dead on the Eclipse IDE and WebMatrix being targeted for causal developers, it is likely to be the last IDE to add support for it in the foreseeable future.

Javascript's ubiquity and increasingly fast VMs have made it an interesting runtime for languages. InfoQ looks at languages and tools that compile to Javascript: CoffeeScript 1.0, StratifiedJS, the Emscripten LLVM backend which brings C/C++ to Javascript, and more.

Javascripts ubiquity and increasingly fast VMs have made it an interesting runtime for languages. InfoQ looks at languages and tools that compile to Javascript: CoffeeScript 1.0, StratifiedJS, the Emscripten LLVM backend which brings C/C++ to Javascript, and more.

In a post entitled Re-thinking JDK7, Mark Reinhold put forward a suggestion that certain previously planned elements of JDK7 be suspended until JDK8 in order to get the release out of the door sooner rather than later. What does the community think of this suggestion? Read on to find out.

Optional parameters have always been part of .NET, but with C# unwilling to support it, using them was generally considered taboo unless work with COM libraries. Now that C# 4 does support them, we are starting to see them used for a lot more than just legacy code. Other uses include interoperability with dynamic languages, immutable data structures, and various parts of ASP.NET MVC.

Dana Groff has announced the end of Microsoft’s experiment with software transactional memory for the .NET Framework. Known as STM.NET, this research project was announced in 2008 as an alternative to explicit locks when dealing with concurrency issues.

Having caught with the recent advances in Microsoft’s C# 4, the Mono team is now playing with their own extensions to the language. The two features they are experimenting with are string interpolation and support for multiple return values.

Clojure 1.1 RC1 is out and cuts the overhead of functional programming with a few new constructs: transients bring controlled mutability for persistent data structures; chunked sequences make lazy sequences more efficient. InfoQ takes a look at what makes these improvements work.